Electrochemical Properties of Spherical,Porous LiMn2-xMgxO4 Powders Prepared by Ultrasonic Spray Pyrolysis

• OGIHARA Takashi

  Department of Materials Science and Engineering, Fukui University

• OGATA Nobuo

  Department of Materials Science and Engineering, Fukui University

• KATAYAMA Keiichi

  Faculty of Engineering, Tokai University

• AZUMA Yasuo

  Faculty of Engineering, Tokai University

• MIZUTANI Nobuyasu

  Department of Inorganic Materials, Faculty of Engineering, Tokyo Institute of Technology

書誌事項

タイトル別名

• Electrochemical Properties of Spherical, Porous LiMn₂₋<i>_x</i>Mg<i>_x</i>O₄ Powders Prepared by Ultrasonic Spray Pyrolysis

抄録

Spherical LiMn_2−xMg_xO₄ powders were prepared by the ultrasonic spray pyrolysis. As-prepared particles had a porous microstructure and were nonagglomerated, which had an average diameter of about 1 µm with narrow size distribution. XRD showed that as-prepared powders were well crystallized to spinel structure with Fd3m space group. ICP analysis revealed that Mg ions were homogeneously doped to LiMn₂O₄. As-prepared powders were used as cathode active material for lithium secondary battery and its electrochemical properties were investigated between 3.5 and 4.3 V. The first charge/discharge capacity of LiMn₂O₄ was 145 and 141 mAh g⁻¹ at 0.1 mA cm⁻², respectively. The discharge capacity of LiMn₂O₄ decreased with increasing cycle number. The first charge/discharge capacity of LiMn_2−xMg_xO₄ was less than that of LiMn₂O₄. However, the cycle performance of LiMn_2−xMg_xO₄ was superior to that of LiMn₂O₄.

収録刊行物

• Electrochemistry

  Electrochemistry 68 (3), 162-166, 2000-03-05

  公益社団法人　電気化学会

キーワード

• Lithium Secondary Battery
• Cathode Materials
• Spray Pyrolysis
• LiMn₂O₄

詳細情報

• CRID: 1390001277391401984
• NII論文ID: 10004455026
• NII書誌ID: AN00151637
• DOI: 10.5796/electrochemistry.68.162
• ISSN: 21862451
• ISSN: 13443542
• ISSN: http://id.crossref.org/issn/13443542
• NDL書誌ID: 5295392
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5295392
• Web Site: https://www.jstage.jst.go.jp/article/electrochemistry/68/3/68_162/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用可